Dental separator.



No. 645,4l3. Patented Mar. 13', |90o.

E. WISHART. DENTAL SEPARATOR.

(Application tiled Dec. 1, 1899.)

{No Model.)

Q QifMcoaco UNITED STATES PATENT Fi rce.

EDlVARD \VISI-IART, OF \VATERFORD, PENNSYLVANIA, ASSIGNOR TO JAMES IV. IVORY, OF PHILADELPHIA, PENNSYLVANIA.

DENTAL SEPARATOR.

SPECIFICATION forming part of Letters Patent No. 645,413, dated March 13, 1900.

Application tiled December 1,1899. Serial No. 738,869; (No model.)

To all whom it may concern:

Be it known that I, EDWARD VVISHART, a citizen of the United States, residing at Waterford, in the county of Erie and State of Pennsylvania, have invented a new and useful Improvement in Dental Separators, which improvement is fully set forth in the following specification and accompanying drawings.

My invention consists of a dental separaro tor of novel construction whereby the same is of an effective, strong, durable, non-complicated, and inexpensive nature and its jaws are movable in parallel or right-lined directions, or approximately so, as will be hereinafter described, and pointed out in the claims that follow the specification.

Figure 1 represents a perspective view of a dental separator embodying my invention.

Fig. 2 represents a horizontal section thereof on line so 00, Fig. 1. Fig. 3 represents a section on line y y, Fig. 1. Fig. 4 represents a section on line ,2 c, Fig. 3.

Similar letters of reference indicate corresponding parts in the figures.

Referring to the drawings, A designates a frame formed of members or sections B and O, the slotted sleeve D, and the screw E, the latter passing through the slot of said sleeve and a limb of either of said members, whereby the 0 frame is adjustable in width and when adjusted may be retained in a position in which it is placed. On the limbsF of the members 13 and O are the sleeves G, the outer ends of which have the jaws H thereon, the same being engaged by the screws J, which also engage with the jaws K, which, as will be seen,

are opposite to the jaws H. It will be now seen that when the points of the jaw are inserted between the teeth to be separated and the screws J are properly rotated said jaws recede from each other in parallel or rightlined directions and bear against the teeth in opposite directions, and thus separate the same, it being also evident that the frame A is adjustable, so as to properly locate the jaws on the portions of the teeth with which they primarily contact.

It will of course be evident that in the present instance the screws J are swiveled to the jaws H; but slight changes may be made in this construction without departing from my invention.

The frame A constitutes somewhat of an arch, so as to be readily passed over adjacent teeth, and the limbs F form elbows with the members B C, so that the jaws H and K may be properly located relatively to the teeth to be separated.

- It will be further apparent that the adj ust ment controlled by the screw E is made for the purpose of accommodating the separators to various-sized teeth.

It will of course be evident that slight changes may be made by those skilled in the art which will come within the scope of my invention, and I do not therefore desire to be limited in every instance to the exact con struction I have herein shown and described.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a dental separator, a frame, jaw members on the limbs thereof; sliding sleeves on said limbs, jaw members on the ends of said sleeves adjacent to the other jaw members, and screws fitted to said jaw members parallel with said sleeves for moving the said jaws in opposite directions parallel to each other.

2. In a dental separatolga frame, jaw members mounted thereon, sliding sleeves on said frame, jaw members on said sleeves opposite to the jaw members of the frame, screws fitted to said jaw members parallel with said sleeves to move the same in opposite directions parallel to each other, and means for laterally adjusting said frame.

3. In a dental separator, a frame, a jaw on the end of a limb thereof, a sliding sleeve on said limb, a jaw on said sleeve opposite to the jaw on the frame, and a screw passing through one jaw and engaging the other and being parallel with said sleeve.-

JOHN A. WIEDERSHEIM, WM. OANER WIEDERSHEIM. 

